ツインクオーツによる高精度腕時計の開発
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概要
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This paper describes the system and analysis of "Twin Ouartz", a highly precise wristwatch which we have recently developed. An improvement in time accuacy is an inevitable subject for technological development of wristwatches. To realize a highly precise wristwatch, it is necessary to obtain a quartz oscillator with an excellent temperature characteristic. With this aim, we focused our attention on the method in which two similar quartz osdillators in temperature characteristics and the logic circuit are adopted. Thus, a wristwatch displaying satisfactory performance including time accuracy has been brought to completion.
- 社団法人日本時計学会の論文
- 1979-06-20